Stacey's actually a pretty popular character. She came 7th in the 'Your Favourite EastEnders Character Ever' poll earlier this year, only Ian and Carol out of the present characters came higher.
I think it's not that people don't like Stacey, I wonder if it's more that people are concerned that the return won't live up to the original stint. I can understand that concern, as Stacey (along with Janine and Pat) is tied for my favourite character ever. I do wonder what they're going to do with her.
I always believed that that Stacey left too soon, there was a wealth of places they could go with her.
DTC has said this is a second act for Stacey, so it makes me believe he has a plan. I'm trusting in this - therefore, my answer, is 'FOR'